JPH07324234A - Bracket for roving guide pipe of fine spinning frame - Google Patents

Abstract

PURPOSE:To provide a bracket capable of fixing a roving guide pipe to a supporting rod by fastening at one position when the roving guide pipe is fixed to the supporting rod. CONSTITUTION:This bracket 1 is provided with a base part 2, a pair of holding pieces 3a and 3b protrusively formed on the base part 2. A hole 5 into which a supporting rod 4 is inserted is formed in the base part 2. Arc faces 7a and 7b capable of holding a roving guide pipe 6 in a state nearly perpendicular to the axial direction of the hole 5 are formed at a position close to the base end of the holding pieces 3a and 3b and opposite to each other. A groove connecting the hole to the outside is formed in a state perpendicular to the hole 5 between base ends of both holding pieces 3a and 3b in the base part 2. A bolt-inserting hole 9 is formed at the position close to free ends in the holding piece 3a and a housing part 9a is formed in the bolt-inserting hole 9. A bolt-inserting hole 10 is formed at a position opposite to the bolt-inserting hole 9 and a rotation-stopping part 10a in which a nut 12 is housed is formed in the bolt-inserting hole 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention guides roving yarn supplied to a draft part from a roving bobbin suspended along a creel of a spinning machine base, so that it is arranged along the longitudinal direction of the spinning machine base. The present invention relates to a roving guide pipe bracket for a spinning machine that supports an installed tubular roving guide.

[0002]

2. Description of the Related Art In a spinning machine, in particular a ring spinning machine, a roving yarn is drawn from a roving yarn winding suspended on two inner and outer rows of roving yarn winding rails which form a creel, and is arranged at an intermediate position between one inner and outer roving yarn winding set. It is supplied to the lower draft part via the roving guide. A cylindrical roving guide arranged along the longitudinal direction of the spinning machine base is disclosed in, for example, Japanese Utility Model Publication No. 1-142475. As shown in FIG. 5, a support arm 31 is supported by the creel pillar 30 in a state of being orthogonal to the longitudinal direction of the spinning machine frame 32 (direction perpendicular to the paper surface).
A support rod 33 is fixed to the support arm 31 so as to extend in the vertical direction, and a roving guide pipe 35 is supported by the support rod 33 via a bracket 34 so as to extend along the longitudinal direction of the spinning machine frame 32. . And
The roving R drawn from the roving winding 37 suspended from the creel 36 is guided to the draft part 39 via the roving guide pipe 35 and the roving guide 38.

As shown in FIG. 6, the bracket 34 is formed with a hole 34a through which the support rod 33 is inserted and a hole 34b through which the roving guide pipe 35 is inserted so as to be orthogonal to each other. The bracket 34 is fastened and fixed via the bolt 40 with the hole 34a inserted through the support rod 33, and the roving guide pipe 35 is fastened and fixed to the bracket 34 with the bolt 41 while inserted through the hole 34b. .

[0004]

As described above, conventionally, in order to fix the roving guide pipe 35 at a predetermined position,
The bracket 34 is tightened and fixed to the support rod 33 with the bolt 40, and the bolt 4 is attached to the bracket 34.
It is necessary to clamp and fix the roving guide pipe 35 via 1. A large number of support rods 33 and brackets 34 are used to dispose the roving guide pipe 35 over substantially the entire length of the spinning frame. Therefore, it is necessary to tighten two bolts for each bracket 34, which increases the total number of steps, and also requires a large number of bolts.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to fix a roving guide pipe to a support rod by fixing the roving guide pipe to the support rod with one tightening. To provide a bracket for a roving guide pipe.

[0006]

In order to achieve the above-mentioned object, in the invention according to claim 1, a hole is formed from a base portion formed with a hole into which one of a supporting rod and a roving guide pipe is inserted. A pair of gripping pieces that grip the other of the support rod and the roving guide pipe in a state orthogonal to the axial direction are provided in a protruding manner, and the free end side of the gripping piece is engaged with the tightening tool that presses the gripping pieces toward each other. A possible engaging portion is provided, and both the supporting rod and the roving guide pipe are fixed in the hole and between the gripping pieces by the tightening action of the tightening tool.

According to the second aspect of the present invention, the base portion is formed with a groove for communicating the hole with the outside between the base ends of both gripping pieces. Further, in the invention described in claim 3, in the invention described in claim 1 or 2, a bolt insertion hole is formed in each of the gripping pieces near the free end.

[0008]

According to the present invention, any one of the support rod and the roving guide pipe is fitted into the hole formed in the base portion of the bracket. When the support rod is inserted into the hole, the roving guide pipe is arranged at a position corresponding to the pair of grip pieces, and in this state, both grip pieces are tightened by the tightening tool that engages with the engaging portion. Due to the tightening action of the tightening tool, both gripping pieces are deformed in a direction in which they approach each other, and the roving guide pipe is sandwiched by both gripping pieces. Further, as the gripping pieces are deformed, a pressing force acts on the support rod from the wall surface around the hole, and the support rod is also fixed to the bracket. That is, both the support rod and the roving guide pipe and the bracket are fixed by tightening at one place. When the roving guide pipe is fitted into the hole, the support rod is arranged between both gripping pieces, and similarly, both the support rod and the roving guide pipe and the bracket are fixed by tightening at one place.

According to the second aspect of the invention, when both gripping pieces are deformed by the tightening action of the tightening tool, the gripping piece near the free end of the part of the peripheral wall of the hole divided into two by the groove. The end portion on the groove side is pressed against either one of the support rod and the roving guide pipe fitted in the hole. Further, a portion of the peripheral wall of the hole, which corresponds to both ends of the hole on the side opposite to the free end of the gripping piece, is pressed against the other of the support rod and the roving guide pipe fitted into the hole. And fixed to the base of the bracket to the member,
The other member is sandwiched by both gripping pieces.

Further, in the invention described in claim 3, claim 1
In the invention according to claim 2, both gripping pieces are tightened by the bolts inserted into the bolt insertion holes formed in the both gripping pieces and the nuts screwed with the bolts. The support rod and the roving guide pipe are fixed to the bracket by the tightening force.

[0011]

【Example】

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIG. A roving guide pipe bracket (hereinafter, simply referred to as a bracket) 1 includes a base portion 2 made of synthetic resin (for example, nylon) and a pair of gripping pieces 3 a and 3 b protruding from the base portion 2. The base 2 is formed with a hole 5 into which a support rod 4 fixed in a vertically extending state on a creel (not shown) is inserted. A roving guide pipe (hereinafter, simply referred to as a roving pipe) is provided at a position facing each other near the base ends of both gripping pieces 3a and 3b in a state substantially orthogonal to the axial direction of the hole 5.
The arcuate surfaces 7a and 7b are formed so as to be able to grip 6. The curvatures of the arcuate surfaces 7a and 7b are formed to be substantially the same as the curvature of the outer peripheral surface of the roving pipe 6. Both gripping pieces 3
When a and 3b are in a free state, the maximum distance between the circular arc surfaces 7a and 7b is larger than the outer diameter of the roving pipe 6.

A groove 8 for communicating the hole 5 with the outside is formed in the base portion 2 between the base ends of the gripping pieces 3a, 3b in a state orthogonal to the hole 5. The groove 8 is formed so as to extend deeper than the position corresponding to the center of the hole 5. A bolt insertion hole 9 is formed on the first gripping piece 3a on the free end side of the circular arc surface 7a, and the bolt insertion hole 9 has an outer side of the gripping piece 3a (see FIG. 1).
A large-diameter accommodating portion 9a as an engaging portion toward the upper side of (a)
Are formed. A bolt insertion hole 10 is formed in the second gripping piece 3b at a position opposed to the bolt insertion hole 9, and the bolt insertion hole 10 is provided around the gripping piece 3b with a nut as a engaging portion for accommodating a nut. The stopper 10a is formed.

Next, the bracket 1 constructed as described above
The action of will be explained. Support rod 4 for roving pipe 6
1A, the roving pipe 6 is arranged between the gripping pieces 3a and 3b, and the hexagon socket head cap screw 11 as a fastening tool is attached from the first gripping piece 3a side as shown in FIG. The bolt is inserted into the bolt insertion holes 9 and 10. Then, the nut 12 as a tightening tool is housed in the rotation stopping portion 10a, and the hexagon socket head cap screw 11 is screwed into the nut 12. In this state, the hexagon socket head cap screw 11 is screwed with the nut 12 in order to prevent the nut 12 from falling off, and is not in a state in which both gripping pieces 3a and 3b are tightened.

Next, the bracket 1 is arranged in the state of FIG. 1 (a) in which the lower portion of the support rod 4 is fitted in the hole 5, and the hexagon socket head cap screw 11 is rotated in that state. Since the nut 12 is housed in the rotation stopping portion 10a, the rotation of the nut 12 is blocked, and the hexagon socket head bolt 11 is screwed into the nut 12 as the hexagon socket head bolt 11 rotates. And
Both gripping pieces 3a, 3b are deformed in the direction of approaching each other,
The roving pipe 6 is sandwiched between the gripping pieces 3a and 3b while being pressed by the arcuate surfaces 7a and 7b. When the tightening of the hexagon socket head bolt 11 is completed, the head of the hexagon socket head bolt 11 is housed in the housing portion 9a and the nut 12 is housed in the rotation stopping portion 10a.

Further, due to the deformation of both gripping pieces 3a, 3b, the portion of the peripheral wall 5a of the hole 5 divided into two by the groove 8 is closer to the free end of the gripping pieces 3a, 3b, and the end on the groove 8 side. A portion, that is, a portion indicated by A in FIG. 1A is pressed against the support rod 4. Further, in FIG. 1A, B corresponding to both ends of the hole 5 on the side opposite to the free ends of the gripping pieces 3a and 3b of the peripheral wall 5a.
The portion indicated by is pressed against the support rod 4. Then, the bracket 1 is fixed to the support rod 4.

As described above, the bracket 1 is fixed to the support rod 4 and the roving pipe 6 is fixed to the bracket 1 by the tightening force of the hexagon socket head cap screw 11 and the nut 12. Therefore, it is possible to dispose the roving pipe 6 at a predetermined position with half the effort of using the conventional bracket.

In this embodiment, the hexagon socket head cap screw 11 is clamped at the tightening position with respect to the roving pipe 6 and the support rod 4.
And the other side. Since this position is on the outside of the spinning machine base, the position of the hexagon socket head cap screw 11 is the position of the roving pipe 6.
As compared with the case on the opposite side, tightening work becomes easier. In addition, in this embodiment, the head of the hexagon socket head cap screw 11 is housed in the housing portion 9a and the nut 12 is housed in the rotation stopping portion 10a. Hard to do. Further, unlike the conventional bracket, since it is not necessary to form the screw hole in the bracket 1, the step of forming the screw hole is not necessary and the bracket 1
Is easy to manufacture.

(Second Embodiment) Next, a second embodiment will be described with reference to FIG. The bracket 1 of this embodiment has the same basic shape as the bracket 1 of the first embodiment, and the support rod 4
Is grasped by a pair of grasping pieces 3a and 3b, and the roving pipe 6 is inserted into the hole 5 and is different. The same parts as those in the above-mentioned embodiment are designated by the same reference numerals and detailed description thereof will be omitted. The hole 5 is formed so that its diameter is substantially the same as the outer diameter of the roving pipe 6, and the arcuate surfaces 7a and 7b are formed so that the curvature thereof is substantially the same as the curvature of the outer peripheral surface of the support rod 4. Then, the other holding piece 3b has a bolt insertion hole 9a.
A screw hole 13a is formed at a position facing to. The screw hole 13a is a metal member 13 inserted in the gripping piece 3b.
Is formed in.

In this embodiment, when fixing the roving pipe 6 to the support rod 4, the roving pipe 6 is inserted into the hole 5, the hexagon socket head cap screw 11 is inserted into the bolt insertion hole 9, and the screw hole 13 is slightly screwed. Let in. Next, the bracket 1 is arranged such that the lower part of the support rod 4 is located between the arcuate surfaces 7a and 7b. Then, in that state, the hexagon socket head cap screw 11 is rotated to tighten both gripping pieces 3a, 3b. As a result, the support rod 4 and the roving pipe 6 are tightened and fixed to the bracket 1 by an action substantially similar to the above.

(Third Embodiment) Next, a third embodiment will be described with reference to FIG. In this embodiment, the groove 8 is not formed in the bracket 1. Hexagon socket head cap screw 11 and nut 1
When the two gripping pieces 3a, 3b are deformed from the free state in the direction of approaching each other by being tightened by the gripping piece 3
A and 3b are formed in a shape for pressing and urging the roving pipe 6 toward the hole 5 side. That is, the arcuate surfaces 7a and 7b are not formed on the hole 5 side, but are formed only on the free end sides of the gripping pieces 3a and 3b.

In the bracket 1 of this embodiment, the hexagon socket head cap screw 1 with the support rod 4 inserted into the hole 5 and the roving pipe 6 arranged between the two gripping pieces 3a and 3b.
When both gripping pieces 3a and 3b are tightened by the 1 and the nut 12, the roving pipe 6 is pressed toward the hole 5 side by the arcuate surfaces 7a and 7b. Then, the roving pipe 6 is biased toward the hole 5 side, and is pressed and fixed to the partition wall 14 between the roving pipe 6 and the hole 5. Further, the partition wall 14 is deformed inward by the pressing force of the roving pipe 6, and the peripheral wall 5a is pressed against the support rod 4 to fix the support rod 4.

(Fourth Embodiment) Next, a fourth embodiment will be described with reference to FIG. This embodiment differs from the bracket 1 of the first embodiment in that a hook is provided instead of using a bolt as a tightening tool. That is, a hooking pin 15 as an engaging portion is projected from the tip of the first gripping piece 3a, and a hook 16 is rotatably attached to the second gripping piece 3b.

In the bracket 1 of this embodiment, as shown in FIG.
As shown by the chain lines in (a) and (b), the support rod 4 is inserted into the hole 5 in a state where the hook 16 is separated from the hooking pin 15, and the roving pipe 6 is arranged between the two gripping pieces 3a and 3b. It Next, the hook 16 is rotated clockwise in FIG. 4B to be hooked on the hooking pin 15. When the hook 16 is further rotated from the state where the hook 16 and the hooking pin 15 have started to be hooked, the hook 16 causes the gripping pieces 3a and 3b to move.
Are fastened and the support rod 4 and the roving pipe 6 are fixed to the bracket 1 in the same manner as described above. In this embodiment, the tightening work is completed by an extremely simple operation of rotating the hook 16 by approximately 180 °.

The present invention is not limited to the above embodiment, but may be embodied as follows. (1) Instead of the arcuate surfaces 7a and 7b that come into contact with the outer surface of the roving pipe 6 or the support rod 4, a recess having a flat wall surface is formed, or both gripping pieces 3 are formed without forming the recess.
The surfaces of a and 3b facing each other may be flat surfaces.

(2) In the structure of the third embodiment, the partition wall 14 existing on the gripping pieces 3a, 3b side of the hole 5 may be eliminated, and the roving pipe 6 may abut on the support rod 4. Also, in the configuration of the third embodiment, the roving pipe 6
Is inserted into the hole 5, and the support rod 4 is attached to both gripping pieces 3a and 3b.
May be grasped.

(3) The accommodating portion 9a is provided in the bolt insertion holes 9 and 10.
Alternatively, the hexagon socket head cap bolt 11 and the nut 12 may be configured to project outside the gripping pieces 3a and 3b without forming the rotation stopping portion 10a. In this case, hexagon socket head cap screw 1
Instead of 1, ordinary bolts can be used.

(4) Also in the brackets of the first and third embodiments, the bolt may be screwed into the screw hole 13a without using the nut as in the second embodiment. Further, even in the bracket 1 having the structure in which the groove 8 is not formed as in the third embodiment, the hook 16 may be used instead of the bolt as the tightening tool.

(5) The bracket 1 may be made of metal instead of synthetic resin. In this case, it is not necessary to insert a member made of another material to form the screw hole 13a.

(6) Clips may be used as tightening tools instead of bolts. Inventions other than those described in the claims that can be grasped from the embodiments and modifications will be described below along with their effects.

(1) In the invention described in claims 1 and 2, the first gripping piece is provided with a hooking portion, and the second gripping piece is rotated with a hook engageable with the hooking portion. Provide as much as possible. In this case, the work of tightening the gripping piece is easier than the case of using the bolt.

(2) In the invention described in claims 1 to 3, the hole is used for fitting and inserting the support rod, and both gripping pieces are used for gripping the roving guide pipe. In this case, as compared with the case where the support rod is gripped by the gripping piece, the tightening operation of the gripping piece by the tightening tool becomes easier.

(3) In the invention according to claim 3, a housing portion for housing the head of the bolt is provided in the bolt insertion hole.
In this case, the head does not stick out from the outer surface of the bracket, and it becomes difficult for piles to accumulate.

(4) In the invention described in claims 1 to 3, the fasteners are bolts and nuts. In this case, it is not necessary to form a screw hole in the bracket, and the bracket can be easily manufactured.

[0034]

As described in detail above, the first to third aspects of the invention are described.
According to the invention described in (1), when fixing the roving pipe to the support rod, the roving pipe can be fixed to the support rod by tightening at one location, and the number of working steps is reduced.

[Brief description of drawings]

FIG. 1A is a side view showing a mounting operation of a bracket according to a first embodiment, and FIG. 1B is a sectional view taken along line I-I of FIG.

FIG. 2A is a side view showing a mounting operation of the bracket of the second embodiment, and FIG. 2B is a sectional view taken along line II-II of FIG.

FIG. 3 is a side view showing the mounting operation of the bracket of the third embodiment.

4A is a side view showing a fixed state of a bracket of a fourth embodiment, and FIG. 4B is a front view.

FIG. 5 is a side view showing an arrangement of a roving spool, a roving guide, and the like suspended from a creel of a spinning machine.

FIG. 6 is a partial side view showing a mounted state of a conventional roving pipe.

[Explanation of symbols]

1 ... Bracket for roving guide pipe, 2 ... Base part,
3a, 3b ... Gripping piece, 4 ... Support rod, 5 ... Hole, 5a ...
Peripheral wall, 6 ... Roving guide pipe, 7a, 7b ... Arc surface, 8 ... Groove, 9, 10 ... Bolt insertion hole, 9a ... Receiving part as engaging part, 10a ... Detent part as engaging part, 1
DESCRIPTION OF SYMBOLS 1 ... Hexagon socket head cap screw as a fastening tool, 12 ... Nut as a fastening tool, 13a ... Screw hole, 16 ... Hook as a fastening tool.

Claims (3)

[Claims] 1. A base having a hole into which one of a support rod and a roving guide pipe is inserted,
A fastener that projects a pair of gripping pieces that grip the other of the support rod and the roving guide pipe in a state orthogonal to the axial direction of the hole, and presses the gripping pieces toward the free ends of the gripping pieces in the directions in which they approach each other. A bracket for a roving guide pipe of a spinning machine, which is provided with an engaging portion which can be engaged with, and fixes both the support rod and the roving guide pipe in the hole and between the gripping pieces by a tightening action of a tightening tool. 2. A groove for communicating the hole with the outside is formed in the base portion between the base ends of both gripping pieces.
Bracket for roving guide pipe of spinning machine described in. 3. The bracket for a roving guide pipe of a spinning machine according to claim 1, wherein a bolt insertion hole is formed in each of the gripping pieces near the free ends.